Insemination tube syringe



May 8, 1951 E. R. CARLSON msmm'rmu TUBE smmca Filed June 7, 1948 Groundsurfaces, *3?- Z'.R. Harlan INVENTOR ATTORNEYS Patented May 8, 1951UNITED STATES PATENT OFFICE 1 Claim. 1

This invention relates to a combined insemination tube and syringe, theprimar object of the invention being to provide a device of thischaracter including a two-piece construction, eliminating the severalparts used at present in insemination devices, thereby eliminating thehazards of contamination and at the same time providin a structuresimplifying sterilization.

Another object of the invention is to provide an inexpensive syringe foreach insemination tube, thereby speeding up the insemination procedure.

Still another object of the invention is to provide means for use inconnection with the usual insemination tube, for converting the tubeinto a syringe whereby the fluids may be drawn into the tube, and by areverse movement of the attachment, the fluids may be expelled from thetube.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts, hereinafter more fully describedand pointed out in the claim, it being understood that changes may bemade in the construction and arrangement of parts without departing fromthe spirit of the invention as claimed.

Referring to the drawing:

Figure l is a side elevational View showing an insemination tube withthe attachment as placed thereon.

Fig. 2 is a longitudinal sectional view therethrough.

Fig. 3 is a sectional view taken on line 3-3 of Fig. 2.

Fig. 4 is a sectional view taken on line 44 of Fig. 2.

Fig. 5 is a fragmental elevational view illustrating a modified form ofthe device as constructed of glass.

Referring to the drawin in detail, the reference character 5 indicatesthe usual insemination tube, which is constructed of plastic or glassmaterial, the outer surface thereof being ground throughout a portion ofits length, when glass is used in the construction of the tube. Theattachment forming the important feature of the invention, and by meansof which the usual insemination tube is converted into a syringe, isindicated by the reference character 6, the attachment being ofbarrel-like formation with its outer end closed. This member 6 is alsoconstructed of glass or plastic material as shown by the drawing. Theinner surface of this attachment 6 is also ground to cooperate with theground surface of the insemination tube 5 insuring an air-tight fitbetween the attachment 6 and tube 5, when glass is used in theconstruction of the member 6.

As clearly shown by the drawing, the member 5 is formed with the annularbead l at its open end, the bead providing an enlargement over which oneend of the rubber adapter 8 is positioned, which moves with theattachment 6 in contact with the outer surface of the insemination tube,providing an air-tight connection to prevent contamination of the fluidby air entering between the members 5 and 6.

When usin the device, the member 6 may be drawn outwardly over the tube5 with the result that a vacuum is produced within the inseminationtube, causing fluid to be drawn into the tube.

When it is desired to expel the drawn fluids, it is only necessary tomove the barrel-like attachment 6 in the opposite direction, forcing thefluids from the insemination tube.

By using this construction, it is obvious that the inseminationprocedure may be carried out with facility, the chances of contaminationbeing reduced to a minimum.

The barrel-like attachment 6 may be provided with calibrations so thatthe quantity of fluid handled may be gauged.

Having thus described the invention, what is claimed is:

A combined insemination tube and syringe, comprising a tubular section,a barrel-like member having an open end fitted over the tubular sectionmovable longitudinally of the tubular section in contact therewith, anannular bead formed at the open end of the barrel-like member, asubstantially long rubber adapter tube, one end of the adapter tubebeing stretched over the annular bead securing the rubber adapter tubeto the barrel-like member with the major portion of the adapter tubeembracing the tubular section as the barrel-like member moves thereover,providin an airtight fit between the tube section and barrel-likemember.

EDWIN R. CARLSON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,436,638 Dolmatch Feb. 24, 1948FOREIGN PATENTS Number Country Date 595,802 France Oct. 9, 1925 709,164France Aug. 4, 1931

